<script>
var dayarray=new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
var montharray=new Array("January","February","March","April","May","June","July","August","September","October","November","December")
function getthedate(){
var mydate=new Date()
var year=mydate.getYear()
if (year <1000)
year+=1900
var day=mydate.getDay()
var month=mydate.getMonth()
var daym=mydate.getDate()
if (daym<10)
daym="0"+daym
var hours=mydate.getHours()
var minutes=mydate.getMinutes()
var seconds=mydate.getSeconds()
var dn="AM"
if (hours>=12)
dn="PM"
if (hours>12){
hours=hours-12
}
if (hours==0)
hours=12
if (minutes<=9)
minutes="0"+minutes
if (seconds<=9)
seconds="0"+seconds
//change font size here
var cdate="<small><font color='000000' face='Arial'><b>"+dayarray[day]+", "+montharray[month]+" "+daym+", "+year+" "+hours+":"+minutes+":"+seconds+" "+dn
+"</b></font></small>"
if (document.all)
document.all.clock.innerHTML=cdate
else
document.write(cdate)
}
if (!document.all)
getthedate()
function goforit(){
if (document.all)
setInterval("getthedate()",1000)
}
</script>
<span id="clock"></span>
2.将<body>改为<body onload="goforit()">
3.如果要中文自己修改下
初次发贴时，你把这个时间记下来(不知你这个初次发贴是怎么个初次发贴，是当天初次发贴还是他第一次登录你的网站发的贴？)并存到数据库中，再用date()方法得到当前的时间，最后用：历时=datediff("d",初时,date())就可以了，注意中间在的参数d指的是天，如果你要得到小时就用h
<HTML><HEAD><TITLE>动态时钟</TITLE>
<script language=JavaScript>
var timerID = null
var timerRunning = false
function stopclock (){
if(timerRunning)
clearTimeout(timerID)
timerRunning = false}
function startclock () {
stopclock()
showtime()}
function showtime () {
var now = new Date()
var hours = now.getHours()
var minutes = now.getMinutes()
var seconds = now.getSeconds()
var timeValue = "" +((hours >= 12) ? "下午 " : "上午 " )
timeValue += ((hours >12) ? hours -12 :hours)
timeValue += ((minutes <10) ? ":0" : ":") + minutes
timeValue += ((seconds <10) ? ":0" : ":") + seconds
document.clock.thetime.value = timeValue
timerID = setTimeout("showtime()",1000)
timerRunning = true}
</SCRIPT>
<body onload=startclock()>
<form name=clock >
<input name=thetime style="font-size: 9ptcolor:#000000border:0" size=12>
</form>
</body>
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